Valve-seat for mine-pumping conduits.



D F. LEPLEY.

VALVE $EAT FOR MINE PUMPING Ct NDUITS.

AP\ZICATIDN FILED APELZZ, 19 a.

. 1,2163%. Patented Feb.13,1917.

Witnesses lnventor Attorneys P b l "7 y w r 1 L tween the arms of the spider.

seat. The spider 11 has an inverted conoidal hub 12 which does notimpaii the upward flowof the water through the 0 enings behe ring 10 is provided at its lower edge with an inturned annular lip 13 flush with the lower edge of the ringto rest upon the upper end of the lining 6, the internal diameter of the section 2 being practically the same as the internal diameter of the ring 10, whereby said ring will be u held or supported by the section 2, in order thatthe valve seatwill be held firmly, in place to resist the heavy pressure imposed upon it, and the lip 13 in overlapping the upper-end of the lining 6 will assist in protecting it from the water. The upper edge of the ring 10 projects above the liner 7, and the ring 10 is provided flush with its lower edge with an outstanding annular flange 14 sandwiched between the lip and flange 4, whereby to clamp said flange of the valve seat between the sections of the conduit or barrel. The valveseat is thus clamped in place, and the spider 11 serves to uphold the valve seat to prevent it being crushed or distorted due to: the water pressure above 'it.

A rubber or equivalent gasket 15' is disposed between the upper surface of the," flange 14 and the lower edge portion of the liner 7 and lower face of the lip 3, to pro-- tect the parts and to provide a tightclosure or seal, and a similar asket-16 is disposed between the lower sur ace of the flange 14 and the upper surface of the flange i/and upper end vof the lining 6, to provide a tight joint, and to prevent the water from assing over and behind the upper end 0 the lining 6.

The valve 18, which is of disk-shape, is composed of rubber or equivalent materialand is seatable upon the valve seat or grid 9, said valve 18 being secured to the lower surface of a disk 17 which has a marginal depending flange 19 overlapping the periphcry of the valve.

vThe present structure has actually been used with extraordinary success, working entirely satisfactory under water heads up to 600 to 700 feet perpendicular. The structure is practically acid proof, and gives hi hly eflicient and satisfactory service;

ilaving thus described the invention, what is claimed as new i s 1. A valve seat for mine pumping conduits constructed of Babbitt metalor equivalent material and comprising a ring having a spider therein and a lower outturned flange.

2. A valve seat for mine pumping conduits/constructed of Babbitt metal or equivalent material and comprising, a-ring having a spider therein, a lower outturned flange and a loweninturned lip.

scribed, the combination with the upper and 3. In a structure of the character delower sections of a mine pumping conduit and linings for said sections, of a valve seat constructed of Babbitt metal or equivalent material supported by the lower section and having a spider therein and a lower outturned -flange clamped between said sections, and a valve seatable upon said seat, said seat being supported by the lower sec ton and having a portion overlapping the l ning thereof.

4. In a structure -of the character described, the combination of upper and lower sections of a mine'pumping' conduit, linings for said sections, a valve seat constructed of Babbitt metal or equivalent material embodying a-ring having a spider therein, a lower outturned flange clamped between said sections and a lower inturned lip overlapping the upper end of the lining of the lower section, the internal diameter of the lower section being practically the same as that of said ring, whereby said, ring is sup ported firmly by said lower section, and a valve seatable upon said seat within the upper section. 1

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

EDITH HARRIS, R. S. MATI'HEWS. 

